Home / 8,571.05-12,856.03-2,731.85

Finding the Fourth Proportional to 8,571.05, 12,856.03 and 2,731.85

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Solution

The fourth proportional to 8,571.05, 12,856.03 and 2,731.85 is: 4,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.05 : 12,856.03 = 2,731.85 : x
  2. Step 2: Convert to fraction form
    8,571.05/12,856.03 = 2,731.85/x
  3. Step 3: Cross multiply
    8,571.05x = 12,856.03 × 2,731.85
  4. Step 4: Simplify right side
    8,571.05x = 35,120,745.56
  5. Step 5: Solve for x
    x = 35,120,745.56/8,571.05
  6. Step 6: Final answer
    x = 4,097.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.